murphy



(No Model.)

H. PEYH su J L. MURPHY. PLANING MACHINE.

No. 303,425. Patented Aug. 12, 1884.

4 WITNESSES:

.Z MM

UNITED STATES PATENT OFFICE.

HENRY FEYH AND JOHN L. MURPHY, OF PHILADELPHIA, PENNSYLVANIA,

ASSIGNORS TO L. POWER d? CO., OF SAME PLACE.

PLANING-IVIACHINE.

SPECIFICATION forming part of Letters Patent No. 303,425, dated August 12, 1884.

Application filed-March 13, 1884. (No model.)

fo all whom it may concern: I

Be it known that we, HENRY FEYH and JOHN L. MURPHY, both citizens of the United States, -residing in the city and county of Philadelphia, State of Pennsylvania, havein- Vented a new and useful Improvement in Planing-lVIachines,which improvement is fully set forth in the following specification and accompanying drawings, in which- 1o Figure l is a top or plan View of a portion of a planing-machine embodying our invention. Fig. 2 is a vertical section thereof inline x x, Fig. l. Fig. 3 is a partial sideelevation and partial Vertical section of a detached part. Fig. 4 is a vertical section of a modiiication of a portion thereof.

Similar letters of reference indicate corresponding parts in the several figures.

Our invention consists of a planing-ma- 2o chine having a swinging pressure intermediate of the-feeding in or receiving end of the machine and the top cutter head thereof, whereby many advantages are derived, as will be hereinafter stated.

struction, as will be hereinafter fully set forth. Referring to the drawings, Areprescnts the frame of the machine, having the pressureroll A and pressure-bar B mounted thereon,

3o as usual, at the paying-out end of the machine.

C represents the cutter-head; D, the carriers of the endless feed-bed E, which parts are well known in machines of the class.

Above the table of the machine is mounted a transversely-extending frame, F, which has its center, as at a, and carries a pressure-roll, G. In the sides of the frame F are vertical slots b, through which is freely passed a sus- 40 pension-bar, H, the ends whereof are loosely fitted in guides H', rising from theframe A.

Fitted to the frameF are set-screws J ,which bear against the bar H for adjusting the roll G. On the back of the frame is abar, J', which extends transversely and horizontally, and

supports a sliding weight, K.

Pivoted to the frame F, on the end next to the cutter-head C, is the shaving-dasher' L, which is of curved orinclined form, and some- 5o what overhangs said head.

It also consists of -certain details of con-V -G when the nature of the work to beV accomplished requires the same. The frame F is formed of sections adapted to oscillate inde- 6c4 pendently of each other, each section having vslots b, a section of the roll or bar, G, and a weight, K, the bar H passing through the slots b of the sections without interfering with the independent motions of the sections.

It will be seen that We produce a triple pressure for the board to be planed resting upon the endless feed-bed E, and are enabled to equalize the pressure on boards when of different thicknesses near to or in front of the 7o cutter-head, said triple pressure being occasioned by the receiving or starting-in roll M, and the two sections of the pressure roll or bar G, which are mounted'on the sections of the frame F, and oscillate side by side independent of each other and intermediate of the receiving end vof the frame and the cutterhead, as has been stated. The triple pressure is used conjointly with the pressure bar or roll, or both, at the paying-out side of the cutter-head.

It will also be seen that the cutter-head is not obstructed, as would be the case if the pressure were constructed to oscillate from the paying out end o'f the machine, the latter occasioning the crossing of the cutterhead by arms supporting the swinging pressure. Furthermore, said cutter-head is easy of access for purposes of sharpening or changing the knives', as the frame F, with rolls or sections of rolls G, may be entirely swung back ion the centers or axis a, and thus removed from the cutter-head.

When two boards are passed into-the machi-ne side by side, and reach the rollers 0r 95 bars G, should there be any irregularity therein, either section of the frame F yields relatively to said irregularity, thus pressing each board firmly to the feed table while passing under the cutter-head to be planed, preventroo ing the clipping or cutting under of the ends of' the thin boards. The slots permit the section s of the frame to rise without interference of the suspensionbar H tothe extent limited by the screws J. I

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In a planing-machine, triple-pressure dcvices consisting of the feeding or starting-in roll, and two rolls or bars arranged end to end on oscillating frames, which latter are Amounted independent of each other on the frame of the machine, located side by side, and having their axes parallel with the rolls, substantially as and for the purpose set forth.

2. In a planing-machine, the starting-in roll and the cutter-head, in combination with a two-part pressure device, intermediate of said roll and head, consisting1 of two rolls and oscillating frames carrying the same, said framesbeing independent of each other, located side by side, and having their axes paral lel with said roll, substantially as and for the purpose set forth.

3. In a planing-machine, tri plepressure dcvices consisting of the feeding or starting-in roll and two rolls or bars, said roll being mounted on the frame of the machine, and said rolls or bars being mounted on oscillatto guides on the frame of the machine, andV common to the two oscillating frames, Vsubstantially as and for the purposes set forth. y 4. In aplaning-machine, an oscillating frame provided with vertical slots, set-screws, anda suspension-bar, said frame being mounted on the frame of the machine, said bar passing through the slotsof the oscillating frame, and said screws being fitted to the oscillating frame and bearing against the suspension-bar, substantially as and for the purpose set forth.

5. In aplaning-machine, a pressure roller or bar in front of the cutter-head, an oscillating frame vmounted on the frame of the machine carrying said roller or bar, and the receiving-in. roll supportedon the frame of the machine, and located beneath the oscillating frame as a cover, substantially as and for the purpose set forth.

. HENRY FEYH.

JOHN L. MURPHY. Titiiesses:

` JOHN A. VEIDEnsHniM,

A. l?. GRANT'. 

